GATE BT branch:bt PYQs & Answers — Page 38

Questions 371–380 of 650. Imported answers require independent review unless marked reviewed.

Topic practice 650 questionsPage 38 of 65

Which of the following antimicrobial agent(s) is/are growth factor analog(s)?

Your answerSelect all correct options. You can choose more than one.

5-Fluorouracil

Isoniazid

Sulfanilamide

Tetracycline

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Which of the following chemical messenger(s) is/are derivative(s) of tryptophan?

Your answerSelect all correct options. You can choose more than one.

γ-amino butyric acid

Indole acetic acid

Melatonin

Serotonin

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Which of the following nucleus/nuclei is/are NMR active?

Your answerSelect all correct options. You can choose more than one.

¹H

¹³C

¹⁶O

³²S

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In a Mendel’s dihybrid experiment, a homozygous pea plant with round yellow seeds was crossed with a homozygous plant with wrinkled green seeds. F₁ intercross produced 560 F₂ progeny. The number of F₂ progeny having both dominant traits (round and yellow) is _____.

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A 0.1 mL aliquot of a bacteriophage stock having a concentration of 4×10⁹ phages mL⁻¹ is added to 0.5 mL of E. coli culture having a concentration of 2×10⁸ cells mL⁻¹. The multiplicity of infection is _____.

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If the area of a triangle with the vertices

and

is 2 square units, the value of k is _____.

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In a chemostat with a dilution rate of 0.8 h⁻¹, the steady state biomass concentration and the specific product formation rate are 8 mol m⁻³ and 0.2 (mol product)(mol biomass)⁻¹ h⁻¹, respectively. The steady state product concentration in mol m⁻³ is _____.

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If the values of two random variables

are (121, 360), (242, 364) and (363, 362), the value of correlation coefficient between X and Y (rounded off to one decimal place) is _____.

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The determinant of matrix

is _____.

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It is desired to scale-up a fermentation from 1 L to 1000 L vessel by maintaining a constant power-to-volume ratio. The small fermenter is operated at an agitator speed of 300 rotations per minute (rpm). If the value of scale up factor is 10, agitator speed in rpm (rounded off to the nearest integer) for the large fermenter is _____.

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GATE BT branch:bt PYQs

Question 36

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Question 45